Width and Height from Fixture

I'm creating a ragdoll body by creating limbs via FixtureFactory and attaching them using JointFactory. The FixtureFactory calls return a fixture for me to reference the object. My question is though, how do I retrieve the width and height of the object
from that (I need it for drawing the doll correctly).

Is the value I use to create the shape stored anywhere? Or do I really have to subclass Elliptic Fixture and store the width/height fields there?

As polygons can be anything from a line to a chiliagon (1000 edges), there is no way to know the dimensions of the polygon after creation. We could hack around this by providing dimensions for simple polygons such as rectangles, but we choose not to. (keep
it simple)

As you supplied the dimensions in the first place, you should already beware of the size of the shape. I would recommend you save the size somewhere and if you need it, attach it to the UserData property of the fixture.